公开(公告)号：US11852077B2

公开(公告)日：2023-12-26

申请号：US17231487

申请日：2021-04-15

Applicant: Raytheon Technologies Corporation

Inventor： Christopher Britton Greene ,  James M. Donohue ,  Peter AT Cocks

IPC: F23R7/00 ,  F02C7/224 ,  F23R3/44 ,  F23R3/32 ,  F23R3/56 ,  F02C7/264 ,  F02C3/24 ,  F02K7/02 ,  F02C5/00

CPC classification number: F02C7/224 ,  F02C3/24 ,  F02C7/264 ,  F23R3/32 ,  F23R3/44 ,  F23R3/56 ,  F23R7/00 ,  F02C5/00 ,  F02K7/02 ,  F05D2240/36 ,  F05D2250/141 ,  F05D2260/232 ,  F05D2260/99 ,  F23R2900/03043

Abstract: A method for operating a rotating detonation engine, having a radially outer wall extending along an axis; a radially inner wall extending along the axis, wherein the radially inner wall is positioned within the radially outer wall to define an annular detonation chamber having an inlet and an outlet, wherein the method includes flowing liquid phase fuel along at least one wall of the radially inner wall and the radially outer wall in a direction from the outlet toward the inlet to cool the at least one wall and heat the liquid fuel to provide a heated liquid fuel; flowing the heated liquid fuel to a mixer at the inlet to reduce pressure of the heated liquid fuel, flash vaporize the heated liquid fuel and mix flash vaporized fuel with oxidant to produce a vaporized fuel-oxidant mixture; and detonating the mixture in the annular detonation chamber.

公开(公告)号：US20220325893A1

公开(公告)日：2022-10-13

申请号：US17670575

申请日：2022-02-14

Applicant: Raytheon Technologies Corporation

Inventor： Christopher Britton Greene ,  Peter AT Cocks ,  Xiaoyi Li ,  James M. Donohue

IPC: F23R3/56 ,  F23R3/12 ,  F23R3/50

Abstract: A combustor for a rotating detonation engine includes an outer tapered wall extending along an axis; an inner tapered wall extending along the axis, wherein the inner tapered wall is positioned within the outer tapered wall to define an annular combustion chamber having an annular gap between the outer tapered wall and the inner tapered wall, wherein the outer tapered wall is moveable relative to the inner tapered wall along the axis, and wherein movement of the outer tapered wall relative to the inner tapered wall changes the annular gap of the annular combustion chamber. Obstacles can be positioned on either or both of inner and outer wall to enhance turbulence within the combustion chamber.

公开(公告)号：US20220333530A1

公开(公告)日：2022-10-20

申请号：US17231487

申请日：2021-04-15

Applicant: Raytheon Technologies Corporation

Inventor： Christopher Britton Greene ,  James M. Donohue ,  Peter AT Cocks

IPC: F02C7/224 ,  F23R3/44 ,  F23R3/32 ,  F23R3/56 ,  F02C7/264 ,  F02C3/24

Abstract: A method for operating a rotating detonation engine, having a radially outer wall extending along an axis; a radially inner wall extending along the axis, wherein the radially inner wall is positioned within the radially outer wall to define an annular detonation chamber having an inlet and an outlet, wherein the method includes flowing liquid phase fuel along at least one wall of the radially inner wall and the radially outer wall in a direction from the outlet toward the inlet to cool the at least one wall and heat the liquid fuel to provide a heated liquid fuel; flowing the heated liquid fuel to a mixer at the inlet to reduce pressure of the heated liquid fuel, flash vaporize the heated liquid fuel and mix flash vaporized fuel with oxidant to produce a vaporized fuel-oxidant mixture; and detonating the mixture in the annular detonation chamber.

公开(公告)号：US12038179B2

公开(公告)日：2024-07-16

申请号：US17226444

申请日：2021-04-09

Applicant: Raytheon Technologies Corporation

Inventor： Joseph Turney ,  Christopher Britton Greene ,  Peter A T Cocks ,  Andrzej Ernest Kuczek ,  James M. Donohue

IPC: F23R7/00 ,  F02K7/02 ,  F23C15/00 ,  F23R3/00

CPC classification number: F23R7/00 ,  F02K7/02 ,  F23C15/00 ,  F23R3/002 ,  F05D2250/25 ,  F23R2900/03043

Abstract: A combustor for a detonation engine includes a radially outer wall extending along an axis; a radially inner wall extending along the axis, wherein the radially inner wall is positioned at least partially within the radially outer wall to define an annular detonation chamber having an inlet for fuel and oxidant and an outlet; a cooling flow passage defined along at least one of the radially outer wall and the radially inner wall and comprising at least two axially spaced cooling flow passage sections, whereby a different cooling rate can be implemented in the at least two axially spaced cooling flow passage sections.

公开(公告)号：US20230220999A1

公开(公告)日：2023-07-13

申请号：US17226444

申请日：2021-04-09

Applicant: Raytheon Technologies Corporation

Inventor： Joseph Turney ,  Christopher Britton Greene ,  Peter AT Cocks ,  Andrzej Ernest Kuczek ,  James M. Donohue

IPC: F02K7/02 ,  F23C15/00 ,  F23R7/00 ,  F23R3/00

CPC classification number: F02K7/02 ,  F23C15/00 ,  F23R7/00 ,  F23R3/002

Abstract: A combustor for a detonation engine includes a radially outer wall extending along an axis; a radially inner wall extending along the axis, wherein the radially inner wall is positioned at least partially within the radially outer wall to define an annular detonation chamber having an inlet for fuel and oxidant and an outlet; a cooling flow passage defined along at least one of the radially outer wall and the radially inner wall and comprising at least two axially spaced cooling flow passage sections, whereby a different cooling rate can be implemented in the at least two axially spaced cooling flow passage sections.